Car-roof.



W. D. THOMPSON.

GAR ROOF.

APPLICATION FILED JUNE4,1909.

1,126,915. Patented Feb.2, 1915..

W? '77 ass as UNITED STATES PATENT OFFICE.

WILLIAM D. THOMPSON, OF DETROIT, MICHIGAN, ASSIGNOR TO HUTCI-IINS CARROOFING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

CAR-ROOF.

Application filed June 4, 1909.

To all whom it may concern:

Be it known that I, WILLIAM D. THOMP- son, a citizen of the UnitedStates of America, residing at Detroit, in the county of Wayne and Stateof Michigan, have invente certain new and useful Improvements inCar-Roofs, of which the following is a specification, reference beinghad therein to the accompanying drawings.

The invention relates particularly to freight car roofs, of the typeknown generally as inside metal roofs, consisting primarily of an upperand a lower framework of wood and an intermediate metallic covering, andthe invention consists in the novel construction of a roof of thischaracter wherein the metallic covering while properly held in placebetween the sub and superstructures is imperforate throughout, thuseliminating any liability of leakage.

The invention further consists in the peculiar arrangement andcombination of the roof parts, and in various details of construction aswill be more fully hereinafter set forth.

In the drawinges,-Figure 1 is a sectional perspective view, illustratingan embodiment of my invention; Fig. 2 is a similar view, enlarged,illustrating more particularly the spacing means for the fascia andretaining devices for the metallic covering; and Fig. 3 is a sectiontaken on line aaw of Fig. 1.

In the drawings thus briefly described, A designates the substructure ofthe roof, con.- sisting of the usual carlines B, purlins C, and an innerridge pole D. E represents the side plate, and F the sheathing constituting the car side.

The intermediate metallic lining or covering interposed between theframework is represented by the reference-letter G. This covering iscomposed of a plurality of metallic plates arranged one series upon eachside of the ridge in the usual manner, with the adjoining sides of theplates united. The plates may be connected by any preferred type ofjoint that will produce a continuous covering, and I have here shown thejoints as composed of overlapping angleshaped flanges a. Each plate atits lower end has a turned-down portion or flange b that bears againstthe car side, as plainly illustrated in Figs. 2 and 3.

Specification of Letters Patent.

Patented Feb. 2, 1915.

Serial No. 500,182.

Mounted independently of and upon the metallic covering described is thesuperstructure H, composed of the usual subcarlines I, sub-purlins J,and an outer ridge pole K. The upper ends of the sub-carlines areadapted to be nailed to the inner ridge pole, as indicated in Fig. 1,while the sub purlins are nailed to the sub-carlines, the nailsextending only into the carlines and not therethrough or through thesheet. In this manner, the metallic covering, while extendingcontinuously over the sub-structure, is also imperforate, and anyliabilitv of leakage is thus prevented.

To hold the superstructure in place and at the same time retain themetallic covering in its proper position upon the substructure, I

employ holding-down means at the eaves, consisting preferably ofangle-shaped clips, as L. These clips are adapted to be inserted attheir upper ends in recesses 0 formed in the upper faces of the lowerends of the subcarlines, and their depending portions 0? are of a lengthto extend downwardly below the flange 1) of the sheets, and contacttherewith, and are retained at their lower ends to the car sidepreferably by lag-screws 0. These clips, as will be obvious from theirconstruction and location, hold the substructure properly in positionagainst longitudinal movement; hold the metallic sheets down upon thesubstructure, and at the same time constitute the spacing means for theusual fascia M, which is offset for the purpose of providing the usualdrip opening or space extending longitudinally of the car.

0 represents the outer roof boards, which complete the superstructure,and P are the usual running boards.

The superstructure is designed to be supported entirely upon themetallic covering, and for the purpose of taking the wear off the metalsheets or plates, and of preventing their possible rusting by reason oftheir contacting with damp subcarlines, I preferably interpose betweeneach subcarline and the metallic covering a strip of material Q, such asfelt, of a length corresponding substantially to the length of thecarline, as shown.

The usual provision is made by spacing the fascia for draining off fromthe sheet at its lower end any water that may leak through upon themetal. While the car is in motion, however, there is a tendency for suchwaterasfhas deposited u'pon -th'e' sheet to be thrown side'Wise' fromcarlin'e tocarline;

To arrest this movement of the Water and" prevent its contact with theWooden subcarlines and thereby eventually rot the same, I preferablyemploy arresting strips, formed in this instance by extending the edgeportions of the felt strips beyond each side of the Subcarline; asindicated. These project ing felt strips thus check theWater-andserve asguidesfor conducting the same down upon; the sheet to its lower endandindependently of the car-line.

What I- claim as my invention is,-'

1. In a-car roof the combina'tion With the main framework, of animperfora'te metallic covering; extending continuously thereoverfrom-the ridge to theeaves,.a superstructure mounted independently ofand supportedentirely upon the metal covering, afascia s aced to form adrip openin and angle clips at the eaves for holding down thesuperstructure and spacing the fascia.

2. The-- combination With a sub-structure, of a metallic coveringindependently mount ed thereon, a superstructure including carlinesindependently mounted on said metallic roofing and purlins mounted onsaid carlines, a spaced fascia, and angleclips at the eaves hayingalateral portion positioned intermediate said carlines and said purlins,and a downwardly extendingv portion intermediate the fasciaaand' the carside;

In testimony Wliereof I afiix' my" signature in presence of twofwitnessesb I WILLIAM D1 THOMPSON.

WVitnes'ses:

JAME B- RRY,

Copies ofthis patehtma'y be obthinedfor five-cents each ;oy'addressinpthe Commissioner of fatents, v

Washington, D. 0.

